I don't deal with pvl, but my son was born at 29 weeks with five birth defects, afecting all his major organs. He spent 9 months in the nicu then came home on a ventilator. Every day seems to get longer and longer, but the best thing you can do is to be there, as much as you can. They need you, you are still a mom, if it helps you, ask to participate in their care. My son was on life support and they still allowed me to change him, give him certain meds, feed him, even though it was through a tube, and sing to him. He's now 7, still deals with a lot of health issues, but has come so far. Also, my nicu allowed me to take a few photos, my son loves looking at them now. Good luck.